I’m using the bundle you provide through Cubasis.
I use Midi extensively, including with a Behringer X Touch control surface. Cubasis does support the X Touch (straight up Mackie), but not in any way for your IOS plug-ins.
While your IOS plug-ins work extremely well from a sonic perspective, the UI, pretty as it is, leaves one to believe that Waves isn’t entirely committed to IOS. If you’re not, I understand.
It’s frustrating trying to dial-in a setting on the iPad screen. Some of your competitors offer alternative approaches to data entry (for examples, hold down a control to display a field for numeric entry or midi-learn).
If Waves is committed to IOS, supporting Midi learn and (preferably Mackie) would be a great enhancement.